Daikin VAM Series Engineering Data page 39

EDMMT712101
Examples of Wiring and System Design Error
A remote controller needs to be connected to remote controller transmission line.
When a remote controller transmission line is connected, be sure to connect a remote controller on the transmission line.
Reason
Signal communications on remote controller transmission line starts with remote controller.
Therefore, if no remote controller is connected, transmission is not performed and thus the unit does not operate.
Example of control wiring
(Remote controller) Absent
Connect centralized transmission line to the air conditioner.
When performing centralized management, be sure to connect centralized transmission line to the centralized terminals (F1) (F2) of the
indoor unit.
Reason
Air conditioner information cannot be transmitted to the centralized control equipment via Heat Reclaim Ventilator Unit.
Also, the information cannot be transmitted from centralized control equipment to the air conditioner via Heat Reclaim Ventilator Unit.
Example of control wiring
VAM-HVE/HVLT Series
F1 F2
P1 P2
P1 P2
Indoor unit
To centralized control equipment
Centralized transmission line
F1 F2
P1 P2
Indoor unit
P1 P2
Remote controller
F1 F2
Heat Reclaim Ventilator Unit
F1 F2
P1 P2
Heat Reclaim Ventilator Unit
Control System
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